Main Products

Japanese Industrial Standard

 JIS G3444  Carbon steel tubes for general structural purposes  STK

 JIS G3445  Carbon steel tubes for machine structural purposes  STKM

 JIS G3454  Carbon steel pipes for pressure survice  STPG

 JIS G3455  Carbon steel pipes for high pressure service  STS

 JIS G3456  Carbon steel pipes for high temperature service  STPT

 JIS G3461  Carbon steel boiler and heat exchanger tubes  STB


Registers of Shipping

 Lloyd's register of shipping  LRS


Foreign Specifications





 Please consult us for any specifications other than the above mentioned.


Steel Tubes Further Processing


 Bevel cutting

 Centerless grinding



Extraction from standards specifications

 pdficon_large.gif Carbon steel tubes for general structural and mashine structural porpose 

 pdficon_large.gif Carbon steel pipes for pressure,high pressure,and high temerature,

 pdficon_large.gif Carbon steel tubes for cylinder barrels 

Available size

pdficon_large.gif Available size range and unit weight  get_adobe_reader.gif